Sean H. Doucette was booked in the Clark County Jail on suspicion of second-degree murder.

Vancouver police began investigating the shooting after the suspected shooter's wife called 911 at about 4 a.m. to report a prowler near her home, located near 150th Avenue and NE 33rd Street in Vancouver. The location is also near Evergreen High School.

A few minutes later, police said another man called 911 to say a shooting had taken place outside and that the prowler had died from his injuries. The man who called 911 wasn't the shooter, police said.

New details emerged late Tuesday afternoon about the suspected shooter. Doucette is a security guard with First Response Inc., and is licensed in Oregon to be an armed officer, said Dave Foglio, president of the company.

Doucette, who works in the patrol division, has been with First Response for several years. Foglio said he has a clean work record.

Doucette has his own weapon and carries it home, Foglio said.

As for the police investigation, the deceased prowler has not been identified; he was not wearing identification.

Police said Doucette cooperated with investigators and the Major Crimes Team is investigating.

A group of young people gathered near the location and some crossed crime tape onto the property only to be forced back by police officers.

Doucette does not have a criminal record in Washington and owns the home with Rachel Doucette, according to property tax records.